Phat Trien Giao Duc Viet Nam Vpbox Joint Stock Company Address: P307 Nha D5 Tap The Giang Vo, Giang Vo Ward, Ba Dinh District, Ha Noi City Enterprise code: 0102460768 Phone: 0247545309; 0247910787 Representative: Le Thi Yen Binh Adress: No 63, Nha B4, An Duong Street, Yen Phu Ward, Tay Ho District, Ha Noi City Giang Vo Ward, Ba Dinh District, Ha Noi CityFounding date: 13 - 11 - 2007